Pentair Hydromatic S4MN Installation And Service Manual
MODEL S4MN
SUBMERSIBLE
SOLIDS HANDLING PUMP
INSTALLATION AND SERVICE MANUAL
NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible
party who maintains the system.
Item # E-03-311 | Part # 5625-311-1 | © 2013 Pentair Pump Group, Inc. | 11/11/13
General Information
Attention:
This manual contains important
information for the safe use of this
product. Read this manual completely
before using this product and refer to it
often for con tin ued safe product use. DO
NOT THROW AWAY OR LOSE THIS
MAN U AL. Keep it in a safe place so that
you may refer to it often. Reasonable care
and safe meth ods should be practiced.
Check local codes and requirements
before installation.
Unpacking Pump:
Remove pump from carton. When
un pack ing unit, check for con cealed
damage. Claims for damage must be
made at the receiving end through the
delivery carrier. Dam age cannot be
processed from the factory.
WARNING: Before handling these
pumps and controls, always disconnect
the power first. Do not smoke or use
sparkable electrical devices or flames
in a septic (gaseous) or possible septic
sump.
CALIFORNIA PROPOSITION 65
WARNING:
This product and
related accessories contain chemicals
known to the State of California to
cause cancer, birth defects or other
reproductive harm.
Pumps Not Operating or in Storage:
Pumps with carbon ceramic seals
must have impellers manually rotated
(6 revolutions) after setting nonoperational for 3 months or longer and
prior to electrical start-up.
Pumps with tungsten carbide seals
must have impellers manually rotated
(6 revolutions) after setting nonoperational for 3 weeks or longer and
prior to electrical start-up.
Seal Failure:
An electrode is installed in the seal
chamber so if any water enters the chamber
through the first seal the electrode will be
energized and a signal will be trans mitted
to the sen sing unit at ground surface
causing a red light to turn on. The electrode
probe is installed in all units, but the
sensing unit is sup plied at extra cost and
must be ordered.
In operation the seal failure unit in dicates
only that there is some water in the seal
chamber. The pump will con tin ue to
operate but the seal should be checked
immedi ate ly after failure is indicated.
The sensing unit is recommended on all
installations as good insurance against
motor failure.
Pump:
The S4MN submersible pump is supplied
for 1 and 3 phase and for 200, 230, 460
or 575 volts. Power cable is supplied
with the green wire for ground. Be sure
green wire is connected to a good ground
such as water pipe or ground stake.
Heat Sensors:
All motors have heat sensor units
em bedded in the motor winding to detect
ex ces sive heat. The heat sen sors are set to
trip at 120°C on the S4MN. The sensors
au to mat i cal ly reset when motor cools to
safe tem per a ture.
The sensors are connected in series with
the motor starter coil so that the starter is
tripped if heat sensor opens. The motor
starter is equipped with overload heaters
so all normal over loads are protected by
the starter.
IMPORTANT: If Hydromatic
electrical starting equip ment is not
supplied, the heat sensor circuit must
be connected in series with the starter
coil or warranty is void.
Sump Level Control:
Sump level is controlled by Hydromatic
switch controls. The float is held in
position in the sump by a weight attached
to the power cord above the float. The
cord supports the float and is adjusted for
height from the surface.
Duplex systems use three controls:
one set at turn-off, one set at turn-on
for one pump, and one set for turn-on for
two pumps. Pumps alternate op er a tion
on each successive cycle.
Two pumps operate together only if sump
level rises to the third or over ride control.
The override control also brings on
the second pump in case of failure of
the first pump. Extra floats with
ap pro pri ate controls can be supplied for
alarm functions. Triplex systems use four
controls: one set at turn-off, one set at
turn-on for one pump, one set at turn-on
®
for two pumps, and one set at turn-on
for three pumps. Pumps alternate each
successive cycle.
Three pumps operate together only if
sump level rises to the fourth control
(second override). This control also
brings on the third pump in case of
failure of either or both of the first
two pumps.
Alarm Controls:
The alarm level is usually set above the
override level so the alarm will signal
only if the override level is exceeded.
However, some engineers prefer to have
the alarm level set below the override
level as it is pos si ble for one pump
to fail and the other pump to operate
on the override level with the sump
level never reach ing the alarm level.
This is par tic u lar ly true in cases of low
inflow capacity.
Electrical Control Panel:
It is recommended that the Hydromatic
control panel be used with all pumps as
proper starter heat ers and connections for
heat sensor wires are fur nished.
Hydromatic electrical equipment is
installed in a weatherproof NEMA 3R
enclosure. The electrical equip ment
includes a main circuit breaker for each
pump, a magnetic starter with overload
protection for each pump, an H-O-A
switch and run light for each pump, and
an electric alternator and a transformer
to provide appropriate control for control
circuit and alarms.
Overload Heaters:
Starters with 3 leg overload
protection must be supplied if the
Hydromatic electrical panel is not
used. The heaters must be sized in
accordance with the nameplate amps
on the motor. The amp draw on these
submersible motors is slightly higher
than a corresponding horsepower surface
motor, so heaters must be sized by the
nameplate rating.
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Installation
WIRE SIZE TABLE
FOR REMOTE LOCATION OF CONTROL PANEL
LENGTHS ARE BASED ON A VOLTAGE DROP OF TWO PERCENT
Maximum length in feet from NEMA 4 Junction Box to control panel. All control wires can be = 14-16 or 18 gauge wire. If power lines are greater the 300
volts, and the control wires are used in the same conduit, then the insulation of the control wires must be for 600 volts.
1 Phase 3 Phase
HP HP
Wire Size Volts 11/2 2 3 5 Volts 11/2 2 3 5 71/2 10 15
200V - - - - 200 217 190 101 - - - -
230 105 95 - - 230 291 250 134 - - - -
12 460 1165 1019 540 412 333 233 -
575 1820 1450 820 624 515 364 -
200 121 111 103 - 200 340 297 158 119 - - -
230 163 148 139 - 230 456 390 210 161 - - -
10 460 1822 1594 846 645 522 364 -
575 2847 2270 1360 976 806 569 -
200 190 175 162 - 200 533 466 249 187 155 - -
230 257 232 219 - 230 715 613 330 252 204 - -
8 460 2860 2500 1328 1013 819 572 390
575 4468 3570 2145 1532 1266 894 -
200 296 272 252 - 200 830 726 387 291 242 170 -
230 400 362 340 181 230 111 4 955 514 393 318 223 -
6 460 4455 3898 2068 1577 1275 891 607
575 - - 3341 2386 1972 1392 -
200 452 416 384 - 200 1268 1110 592 444 370 260 -
230 610 553 520 276 230 1701 1458 785 601 486 340 232
4 460 - - 3160 2410 1449 1361 928
575 - - - 3646 2513 2127 -
200 689 633 586 - 200 1932 1690 902 676 563 395 -
230 930 842 792 421 230 2592 2222 1196 915 741 578 353
*2 460 - - - 3672 2969 2074 1414
575 - - - - 4590 3240 -
*Special Junction Box required for wire sizes larger than #4.
NUMBER OF CONDUCTORS REQUIRED BETWEEN CONTROL PANEL AND NEMA JUNCTION BOX
POWER LINES AND CONTROL WIRES CAN BE CARRIED IN CONDUIT OR CAN BE UNDERGROUND BURIED CABLE
HEAT SENSOR & SEAL FAILURE
System Number of Number of Number of Number of Number of
Type Control Power Lines Ground Wires #8 Sensor Wires Ground Wires
Simplex 4 3 1 3 1
Simplex with Alarm 6 3 1 3 1
Duplex 6 6 2 6 2
Duplex with Alarm 8 6 2 6 2
Installing Switch Controls:
Pump Operations
The controls are supported by a mounting
Instructions
Installing Pump in Sump:
Before installing the pump in
the sump, lay it on side and turn
impeller manually. Im pel ler may be
slightly stuck due to factory test water,
so it must be bro ken loose with small
bar or screwdriver in edge of vanes. The
impeller should turn freely.
Clean all trash and sticks from sump and
connect pump to piping.
A check valve must be installed on each
pump. A gate or plug valve in each pump
discharge line is also recommended.
This valve should be installed on the
discharge side of the check valve so the
line pressure can be cut off if necessary
to service the check valve. Single pump
systems are sometimes installed without
a check valve where it is desirable to
self-drain the dis charge line to prevent
freezing. This can be done only with
short discharge lines. Otherwise water
will return to the sump and cause short
cycling of the pump.
bracket that is attached to sump wall,
cover, or to the NEMA 4 junction box.
Control level can be changed at any time
by loosening the snubber and readjusting
cord length.
In either a simplex or duplex system,
the lower or turn-off control is set just
above the top of volute, so that the volute
will always be submerged during the
pumping cycle. The second, or turn-on
control, is set about 24 inches above the
lower turn-off con trol.
More distance between turn-on and turnoff controls can be used, but sew age
may become septic, and excessive solids
may collect for the pump to handle. A
frequent pumping cycle is recommended
for best op er a tion.
If an alarm system is used, this con trol
is usually set about 6 inches above the
override control.
Making Electrical Connections:
All electrical wiring must be in
ac cordance with local codes, and only
competent electricians should make the
NEMA 4 Junction Box: (Optional)
A NEMA 4 junction box should
be used to make power and
control con nec tions if electrical control
panel is to be set remote from the pump
sump. The Hydromatic® NEMA 4
junction box is provided with
com pres sion con nec tors for sealing all
wires. No sealing compound is need ed to
make con nec tions wa ter proof.
Wiring diagrams are provided with panel
for making connections. The size wire
to use from panel to sump de pends on
motor size and distance in feet.
Be sure each wire is checked out so that
a wrong connection will not be made.
An ohm me ter or Megger can be used to
check wire continuity.
installations. All wires should be checked
for grounds with an ohm meter or Megger
after the connections are made. THIS IS
IMPORTANT, AS ONE GROUNDED
WIRE CAN CAUSE CON SID ER ABLE
TROU BLE.
IMPORTANT: If equipment is not
properly wired and pro tect ed as
recommended, the warranty is void.
Heat Sensors and Seal Failure
Connections:
Be sure heat sensor wires are con nect ed
in series with the starter coil. Connections
are provided on the terminal strip.
Starting Systems:
1. Turn the H-O-A switch to
Off position and then turn on main
circuit breakers.
2. Open all discharge valves and allow
water to rise in sump.
3. Turn H-O-A switch to Hand
position on one pump and notice
operation. If pump is noisy and
vibrates, rotation is wrong. To
change rotation, interchange any
two line leads to motor 3ø only.
Do not interchange main incoming
lines. If duplex system, check
second pump in the same manner.
4. Now set both H-O-A switches to
Auto position and allow water to
rise in sump until one pump starts.
Allow pump to operate until level
drops to turn-off point.
5. Allow sump level to rise to start
other pump. Notice run lights on
panel. Pumps should alternate on
each successive cycle of operation.
6. Turn both H-O-A switches to Off
position and allow sump to fill to
the override control level.
7. Turn both switches to Auto position
and both pumps should start and
operate together until level drops to
turn-off point.
8. Repeat this operation cycle several
times before leaving the job.
9. Check voltage when pumps are
operating and check the amp draw
of each pump. Check amps on
each wire, as sometimes a high
leg will exist. One leg can be
somewhat higher (5 to 10%) without
causing trouble. For excessive
amp draw on one leg, the power
company should be consulted.
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